Restraining piece suitable for bra back ratio and preparation method thereof, bra back ratio, and bra

Abstract

The present invention discloses a binding sheet suitable for the back of a bra, comprising a first binding group and a second binding group arranged crosswise, wherein the first binding group comprises at least one first binding strip, and the second binding group comprises at least one second binding strip, wherein the first binding strip and the second binding strip both extend from the upper side of the back of the bra to the lower side of the back of the bra, and the first binding strip and the second binding strip are both arranged in an arc shape. The binding sheet suitable for the back of a bra of the present invention, when applied to the back of a bra, can effectively change the local elasticity of the back fabric, enhance the support, effectively disperse the force, make the back of the bra have good inclusiveness and stability, improve the sense of oppression when the human body is worn, improve the wearing comfort, and have the effect of correcting the body shape.

Description

Technical Field

[0001] The invention relates to the technical field of clothing products, and in particular to a restraining piece suitable for a back portion of a bra, a preparation method of the restraining piece, and a back portion of a bra and a bra comprising the restraining piece. Background Art

[0002] As people's living standards improve, the public's requirements for underwear and bra products are getting higher and higher. At present, the manufacturing process of the back of bra products in the underwear industry mainly includes conventional sewing technology, that is, elastic band + fabric of the back part + thread. The back part prepared by conventional sewing technology is unevenly stressed when worn, and the body feels oppressive and uncomfortable when worn. The upper and lower sides feel tight, and the middle part tends to protrude outwards, such as Figure 6 shown. Summary of the invention

[0003] In view of this, in order to overcome the defects of the prior art, an object of the present invention is to provide a restraining plate suitable for the back of a bra, which, when fitted on the back of a bra, is evenly stressed and comfortable to wear.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A binding sheet suitable for the back of a bra, comprising a first binding group and a second binding group arranged crosswise, wherein the first binding group comprises at least one first binding strip, and the second binding group comprises at least one second binding strip, wherein the first binding strip and the second binding strip both extend from the upper side of the back of the bra to the lower side of the back of the bra, and the first binding strip and the second binding strip are both arranged in an arc shape. The upper end of the first binding strip and the lower end of the second binding strip are closer to the front side of the human body, and the intersection of the two is approximately between one third and one half of the back.

[0006] The force balance is achieved by the intersecting first and second restraint groups, so that the force exerted by the human body on the back of the bra is evenly distributed, without a sense of oppression, and it is comfortable even if worn for a long time, and it has the effect of correcting the body shape. The restraint strips are made of polymer materials such as silicone rubber, TPE (Thermoplastic Elastomer), TPU (Thermoplastic polyurethanes), nylon and / or spandex, which are skin-friendly and have good stretch recovery properties.

[0007] Preferably, the first and second restraint strips are both composed of line segments of different curvatures, and the arc openings of the first and second restraint strips are opposite. The restraint strips using arc segments can fit the human body better on the one hand, and on the other hand, can extend the restraint strips longer, disperse the force better, and are more beautiful and rounded in appearance than multiple straight strips.

[0008] More preferably, the curvature of the first restraint strip decreases from top to bottom, and the curvature of the second restraint strip increases from top to bottom. That is, the higher the first restraint strip is, the larger the curvature of the restraint strip is, and the lower the curvature of the restraint strip is, the smaller the curvature of the restraint strip is, while the second restraint strip is just the opposite. The upper end of the first restraint strip and the lower end of the second restraint strip are closer to the front of the human body. Such a setting is more conducive to the dispersion of force and prevents the feeling of oppression caused by uneven force.

[0009] Further preferably, the first restraint strip is composed of line segments with an arc less than 50°; the second restraint strip is composed of line segments with an arc less than 30°. Due to the body shape, when the back of the bra fits the human body, the part closer to the front of the human body is subjected to more force than the part closer to the back of the human body, and the part closer to the front of the human body and the upper part are also subjected to greater force than the lower part. Therefore, the arc of the upper end of the first restraint strip is set to the maximum, so that the force can be effectively dispersed, achieving the effect of uniform force and correction of body shape.

[0010] It is also preferred that the first restraint strip includes, from top to bottom, a line segment with an arc of 30° to 50° (accounting for 20 to 30% of the total length of the first restraint strip), a line segment with an arc of 5° to 20° (accounting for 40 to 50% of the total length of the first restraint strip) and a line segment with an arc of 0° to 10° (accounting for 20 to 30% of the total length of the first restraint strip); the second restraint strip includes, from top to bottom, a line segment with an arc of 15° to 25° (accounting for 30 to 40% of the total length of the second restraint strip) and a line segment with an arc of 20° to 30° (accounting for 60 to 70% of the total length of the second restraint strip). In a specific embodiment of the present invention, the first restraint strip preferably includes, from top to bottom, a line segment with an arc of 40° (accounting for 25% of the total length of the first restraint strip), a line segment with an arc of 10° (accounting for 46.3% of the total length of the first restraint strip) and a line segment with an arc of 5° (accounting for 28.7% of the total length of the first restraint strip); the second restraint strip preferably includes, from top to bottom, a line segment with an arc of 20° (accounting for 33.9% of the total length of the second restraint strip) and a line segment with an arc of 25° (accounting for 66.1% of the total length of the second restraint strip).

[0011] Preferably, two of the four angles formed by the first restraining strip and the second restraining strip at the intersection are acute angles, and the remaining two are obtuse angles.

[0012] More preferably, the upper and lower two angles of the four angles formed by the first and second restraint strips at the intersection are acute angles, and the left and right two angles are obtuse angles. In a specific embodiment of the present invention, the upper angle is preferably 75°, the lower angle is 87°, the angle close to the front of the human body is 93°, and the angle close to the back of the human body is 105°. Such a setting is more conducive to the dispersion of force, so that the force on the back is uniform, and the effect of correcting the body shape is better.

[0013] Preferably, the first restraint group includes three first restraint strips, and the second restraint group includes two second restraint strips, the three first restraint strips have the same shape, and the two second restraint strips have the same shape. The spacing between two adjacent first restraint strips is the same, and the spacing between two second restraint strips can be the same as or different from the spacing between the first restraint strips. When the spacing between the second restraint strips of the present invention is the same as the spacing between the first restraint strips, the two meshes formed by the intersection between the first restraint strips and the second restraint strips are similar to a rhombus. Similar to the above-mentioned curvature setting, the front end of the first restraint strip is close to the front and upper sides of the human body, so setting it as three strips is more conducive to dispersing the force.

[0014] The present invention also provides a method for preparing the restraining sheet suitable for the back of a bra as described above, comprising the following steps:

[0015] 1) The material for preparing the restraint sheet is pre-shrinked at high temperature; the purpose of the high temperature pre-shrinkage is to enable the restraint sheet and the bra material to be stretched and deformed synchronously when they are hot-pressed and bonded later, so as to prevent the deformation difference between the two from being too large, resulting in failure to bond or loose bonding after bonding. The temperature of the high temperature pre-shrinkage is set to the hot-pressing temperature of the bra or slightly higher than the hot-pressing temperature.

[0016] 2) Compounding the pre-shrunk restraining sheet material in step 1) with the adhesive film to bond the two together to obtain a composite material; the adhesive film is used to bond the restraining sheet to the rear surface material during subsequent hot pressing, and the adhesive film can be a traditional EVA, TPU adhesive film, etc.

[0017] 3) Cutting the composite material in step 2) into the shape of a restraining sheet to obtain a restraining sheet.

[0018] The present invention also provides a bra back ratio including the above-mentioned restraint sheet suitable for the bra back ratio, and a bra including the bra back ratio. In specific implementation, the restraint sheet adopts a film and is hot-pressed with the original bra back ratio fabric to form the bra back ratio, and the bra back ratio is prepared into a bra using a traditional process. The bra back ratio and the bra using the above-mentioned restraint sheet can effectively disperse the force when in use, achieving the effect of uniform force and correction of body shape.

[0019] In a specific embodiment of the present invention, the method for preparing a bra comprises the following steps:

[0020] 1. First, pre-shrink the material for preparing the restraint piece and the fabric for preparing the bra at high temperature.

[0021] 2. Compound the material of the restraining sheet after pre-shrinking in step 1 with the adhesive film, and make the two stick together to obtain a composite material; the adhesive film is used to bond the restraining sheet to the rear surface material during subsequent hot pressing.

[0022] 3. The composite material in step 2 is cut into the shape in Example 1 by laser processing to obtain an X-shaped restraining sheet.

[0023] 4. The side of the restraining sheet prepared in step 3 away from the adhesive film is adhered with a PET high temperature resistant film to protect the restraining sheet.

[0024] 5. Cut the fabric of the bra back part that has been pre-shrunk in step 1 to form suitable pieces, and hot-press and bond the restraining piece obtained in step 4 to the pieces to obtain the bra back part.

[0025] 6. Prepare the bra by combining the back of the bra with other materials such as mold cups, shoulder straps, etc.

[0026] Due to the adoption of the above technical scheme, compared with the prior art, the advantages of the present invention are: the restraining piece suitable for the back of the bra of the present invention, when applied to the back of the bra, can effectively change the local elasticity of the back fabric, enhance the support, effectively disperse the force, make the back of the bra have good inclusiveness and stability, improve the sense of oppression when the human body is worn, enhance the wearing comfort, and have the effect of correcting the body shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 This is a product picture of a restraining piece suitable for the back of a bra according to an embodiment of the present invention;

[0029] Figure 2 A front view of the back of the bra in an embodiment of the present invention;

[0030] Figure 3 The following are a schematic diagram and a stereoscopic diagram of the back ratio of a bra according to an embodiment of the present invention;

[0031] Figure 4 A product side view of a bra in an embodiment of the present invention;

[0032] Figure 5 Schematic diagram of the wearing effect of the bra in an embodiment of the present invention;

[0033] Figure 6 It is a schematic diagram of the wearing effect of a bra in the prior art. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0035] Embodiment 1 is suitable for the restraint piece at the back of the bra

[0036] See attached Figure 1-4 The binding sheet for the back of the bra of this embodiment is similar to the shape of "X", and includes a first binding group and a second binding group arranged crosswise, the first binding group includes three first binding strips, the second binding group includes two second binding strips, the first binding strips and the second binding strips extend from the upper side of the back of the bra to the lower side of the back of the bra, and the upper end of the first binding strip and the lower end of the second binding strip are closer to the front side of the human body, and the intersection position of the two is about one-third to one-half of the upper and lower width of the back, such as Figure 2-4 shown.

[0037] The first binding group includes three first binding strips of the same shape, and the second binding group includes two second binding strips of the same shape. The spacing between two adjacent first binding strips is the same, and the spacing between two second binding strips is the same as the spacing between the first binding strips. The two meshes formed by the intersection of the first binding strips and the second binding strips are similar to rhombuses, such as Figure 1-2 As shown. In this embodiment, the spacing between adjacent first binding strips and the spacing between adjacent second binding strips are set to 8mm, and in other embodiments, they can be set to 5-10mm. If the spacing is too large, the force dispersion effect is not good, and if the spacing is too small, the air permeability is not good.

[0038] The first and second binding strips are both arc-shaped, and the arc-shaped openings of the first and second binding strips are opposite. In this embodiment, the arc-shaped opening of the first binding strip faces the rear side of the bra back, and the arc-shaped opening of the second binding strip faces the front side of the bra back.

[0039] The first restraint strip and the second restraint strip are both composed of line segments with different curvatures. Specifically, in this embodiment, the first restraint strip includes, from top to bottom, a line segment with a curvature of 40° (accounting for 25% of the total length of the first restraint strip), a line segment with a curvature of 10° (accounting for 46.3% of the total length of the first restraint strip), and a line segment with a curvature of 5° (accounting for 28.7% of the total length of the first restraint strip); the second restraint strip includes, from top to bottom, a line segment with a curvature of 20° (accounting for 33.9% of the total length of the second restraint strip) and a line segment with a curvature of 25° (accounting for 66.1% of the total length of the second restraint strip). The length of the first restraint strip is 18.8 cm, the line segment with a 40° arc is 4.7 cm, the line segment with a 10° arc is 8.7 cm, and the line segment with a 5° arc is 5.4 cm; the length of the second restraint strip is 12.4 cm, the line segment with a 20° arc is 4.2 cm, and the line segment with a 25° arc is 8.2 cm.

[0040] In some other embodiments, the first restraint strip includes, from top to bottom, line segments with an arc of 30° to 50° (accounting for 20 to 30% of the total length of the first restraint strip), line segments with an arc of 5° to 20° (accounting for 40 to 50% of the total length of the first restraint strip), and line segments with an arc of 0° to 10° (accounting for 20 to 30% of the total length of the first restraint strip); the second restraint strip includes, from top to bottom, line segments with an arc of 15° to 25° (accounting for 30 to 40% of the total length of the second restraint strip) and line segments with an arc of 20° to 30° (accounting for 60 to 70% of the total length of the second restraint strip).

[0041] The use of curved line segment restraints can better fit the human body, and on the other hand, can make the restraints extend longer, with better force dispersion effect, and more beautiful and rounded appearance than multiple straight lines. And because of the human body shape, when the back of the bra fits the human body, the part closer to the front of the human body is more stressed than the part closer to the back of the human body, and just for the part closer to the front of the human body, the upper part is also subject to greater force than the lower part. Therefore, the curvature of the upper end of the first restraint strip is set to the maximum, and at the same time, the first restraint strip is set to three, so that the force can be effectively dispersed, achieving the effect of uniform force and correcting body shape.

[0042] In this embodiment, the upper and lower two angles of the four angles formed by the first restraint strip and the second restraint strip at the intersection are acute angles, the two angles close to the front and back sides of the human body are obtuse angles, and the sum of the upper angle and the angle close to the back side of the human body and the sum of the lower angle and the angle close to the front side of the human body are all 180°. In a specific embodiment of the present invention, it is preferred that the upper angle is 75°, the lower angle is 87°, the angle close to the front side of the human body is 93°, and the angle close to the back side of the human body is 105°. Such a setting is more conducive to the dispersion of force, so that the force on the back is uniform, and the effect of correcting the body shape is better.

[0043] The restraint strip is made of polymer materials, such as silicone rubber, TPE (Thermoplastic Elastomer), TPU (Thermoplastic polyurethanes), nylon and / or spandex, which are skin-friendly and have good stretch recovery performance. In this embodiment, the restraint strip is made of a mixture of nylon and spandex or woven, and includes 85% nylon and 15% spandex by weight. The obtained restraint strip has good bidirectional elasticity, 120% in the warp direction and 180% in the weft direction, and has good stretch recovery performance. The fabric is soft, skin-friendly, and highly comfortable to wear.

[0044] Embodiment 2 Bra back ratio and bra

[0045] This embodiment provides a bra back ratio prepared by using the restraint sheet in the above-mentioned embodiment 1 and a bra including the bra back ratio. In implementation, the restraint sheet uses an adhesive film to heat-press and bond with the original back ratio fabric to form the bra back ratio, and the bra back ratio is prepared into a bra using a traditional process. The bra back ratio and bra using the above-mentioned restraint sheet can effectively disperse the force when in use, achieving the effect of uniform force and correcting body shape.

[0046] Specifically, the method for preparing the bra comprises the following steps:

[0047] 1. First, pre-shrink the material for preparing the restraint piece and the fabric for preparing the bra at high temperature.

[0048] The purpose of high temperature pre-shrinkage is to allow the restraint sheet and the bra material to expand and contract synchronously when they are hot pressed together later, to prevent the deformation difference between the two from being too large, resulting in failure to fit or loose fit after fitting. The temperature of high temperature pre-shrinkage is set to the hot pressing temperature of the bra or slightly higher than it.

[0049] 2. Compound the material of the restraining sheet after pre-shrinking in step 1 with the adhesive film, so that the two are bonded together to obtain a composite material; the adhesive film is used to bond the restraining sheet to the rear surface material during subsequent hot pressing, and the adhesive film can be made of traditional EVA, TPU adhesive film, etc.

[0050] 3. The composite material in step 2 is cut into the shape in Example 1 by laser processing to obtain an X-shaped restraining sheet.

[0051] 4. The side of the restraining sheet prepared in step 3 away from the adhesive film is adhered with a PET high temperature resistant film to protect the restraining sheet.

[0052] 5. Cut the bra fabric after preshrunk in step 1 to form suitable pieces, and heat-press the restraint piece obtained in step 4 and the pieces to obtain a bra. Figure 2-3 shown. Figure 3 In the figure, Figure A is a schematic diagram of the stacking, a1 is the binding belt, a2 is the film, a3 is the bra back fabric, and Figure B is a three-dimensional diagram of the bra back after heat pressing.

[0053] 6. Prepare a bra by combining the bra back with other materials such as mold cups, shoulder straps, etc. In some embodiments, the bra back obtained after hot pressing needs to be properly trimmed to finally obtain a bra. Figure 4 In the product picture shown, the top of the first restraint group is located exactly where the top of the back of the bra is connected to the mold cup.

[0054] The above steps substantially include the preparation of the restraint sheet, the preparation of the bra back and the preparation of the bra, and they are numbered for the convenience of description and understanding. However, in the actual production process, the steps can be performed simultaneously, such as cutting the bra back fabric while preparing the restraint sheet. Regarding the specific parameters in the steps such as compound parameters, laser parameters, and hot pressing parameters, since the materials of this embodiment are all existing commercially available materials, these parameters can be selected conventionally in the art.

[0055] The bra back and bra prepared in this embodiment have a stylish appearance and are breathable. The restraining piece in Example 1 is partially bonded to improve the support of the bra back, getting rid of the sense of oppression and restraint brought by traditional sewing products. Through human test wear verification, it is found that the bra product in this embodiment can improve the sense of oppression when worn by the human body, and has good tolerance and stability. It can make the force on the back of the bra evenly distributed after the human body is worn, improve the comfort of wearing, and have the effect of correcting the body shape, such as Figure 4 and 5 shown.

[0056] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A restraining piece suitable for the back of a bra, characterized in that: The invention comprises a first binding group and a second binding group arranged crosswise, wherein the first binding group comprises at least one first binding strip, and the second binding group comprises at least one second binding strip, and the first binding strip and the second binding strip both extend from the upper side of the bra back ratio to the lower side of the bra back ratio, and the first binding strip and the second binding strip are both arranged in an arc shape; the first binding strip and the second binding strip are both composed of line segments with different curvatures; the curvature of the first binding strip decreases from top to bottom, and the curvature of the second binding strip increases from top to bottom; the first binding strip is composed of line segments with a curvature less than 50°; the second binding strip is composed of line segments with a curvature less than 30°; The first restraining strip includes, from top to bottom, a line segment with an arc of 30° to 50°, a line segment with an arc of 5° to 20°, and a line segment with an arc of 0° to 10°, which respectively account for 20-30%, 40-50%, and 20-30% of the total length of the first restraining strip; the second restraining strip includes, from top to bottom, a line segment with an arc of 15° to 25° and a line segment with an arc of 20° to 30°, which respectively account for 30-40% and 60-70% of the total length of the second restraining strip; The upper end of the first restraint strip and the lower end of the second restraint strip are closer to the front side of the human body, and the intersection of the two strips is at a position between one third and one half of the width from top to bottom of the rear ratio; Among the four angles formed by the first restraining strip and the second restraining strip at the intersection, the upper and lower two angles are acute angles, and the left and right two angles are obtuse angles.

2. A method for preparing the restraining sheet suitable for the back of a bra as claimed in claim 1, characterized in that: The method comprises the following steps: pre-shrinking the material for preparing the restraining piece; and cutting the pre-shrinked material into the shape of the restraining piece to obtain the restraining piece.

3. A bra back comprising the restraining piece suitable for the bra back according to claim 1.

4. A bra comprising the restraining piece suitable for the back of a bra as claimed in claim 1.

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